1 date: 5/02/06 rev b sp809/810, 3 pin microprocessor supervisor circuit ? copyright 2006 sipex corporation 3 pin microprocessor supervisor circuit sp809 / sp810 description features ultra low supply current 1 a (typ.) guaranteed reset valid to v c c = 0.9v 140 ms min. power-on reset pulse width internally fixed threshold 2.3v, 2.6v, 2.9v, 3.1v, 4.0v, 4.4v, 4.6v tight voltage threshold tolerance: 1.5% offered in a 3 pin sot-23 package the sp809/sp810 are low power microprocessor ( p) supervisory circuits used to monitor power supplies in p and digital systems. they provide applications with benefits of circuit reliability and low cost by eliminating external components. if the v cc supply voltage falls below preset threshold then a reset signal is asserted for at least 140ms after v cc has risen above the reset threshold. both the sp809 and sp810 were designed with a reset comparator to help identify invalid signals, which last less than 140ms. the only difference between them is that they have an active-low reset output and active-high reset output, respectively. low supply current (1 a) makes sp809/sp810 ideal for portable equipment. the devices are available in 3 pin sot-23 package. typical application circuit applications portable electronic devices electrical power meter digital still camera p power monitoring now available in lead free packaging sp809 3 pin sot-23 reset v cc gnd reset gnd v cc reset (reset) v cc v cc gnd push-pull output p r e b m u n t r a p e p y t t u p t u o n 9 0 8 p s w o l e v i t c a n i a r d -n e p o 9 0 8 p s w o l e v i t c a l l u p -h s u p 0 1 8 p s h g i h e v i t c a l l u p -h s u p
2 date: 5/02/06 rev b sp809/810, 3 pin microprocessor supervisor circuit ? copyright 2006 sipex corporation v cc .................................................................................... -0.3v to 6.5v reset, reset ......................................................... -0.3 to v cc + 0.3v input current (v cc ) ....................................................................... 20ma output current (reset, reset).................................................. 20ma continuous power dissipation (t a = +70oc) ............................. 320mw operating junction temperature ................................... -40 c to +85 c junction temperature.....................................................................125 c storage temperature .................................................. -65 c to +150 c these are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. exposure to absolute maximum rating conditions for extended periods of time may affect reliability. electrical characteristics typical values are at t a = 25 c, unless otherwise specified. (note 1) absolute maximum ratings r e t e m a r a p l o b m y s . n i m . p y t . x a m s t i n u s n o i t i d n o c e g n a r e g a t l o v g n i t a r e p o v c c 9 . 0 0 .6 v t n e r r u c y l p p u s i c c 0 . 1 0 .3 a v c c v = h t v 1 . 0 + d l o h s e r h t t e s e r v h t 5 6 2 . 2 3 . 2 53 3 . 2 v 3 2 -9 0 8 p s t a c o 5 2 + = 4 5 2 . 2 64 3 . 2 t a c o 5 8 + o t c o 0 4 -= 1 6 5 . 2 6 . 2 93 6 . 2 6 2 -9 0 8 p s t a c o 5 2 + = 8 4 5 . 2 25 6 . 2 t a c o 5 8 + o t c o 0 4 -= 7 5 8 . 2 9 . 2 44 9 . 2 9 2 -9 0 8 p s t a c o 5 2 + = 2 4 8 . 2 85 9 . 2 t a c o 5 8 + o t c o 0 4 -= 4 5 0 . 3 1 . 3 74 1 . 3 1 3 -9 0 8 p s t a c o 5 2 + = 8 3 0 . 3 26 1 . 3 t a c o 5 8 + o t c o 0 4 -= 0 4 9 . 3 0 . 4 06 0 . 4 0 4 -9 0 8 p s t a c o 5 2 + = 0 2 9 . 3 08 0 . 4 t a c o 5 8 + o t c o 0 4 -= 4 3 3 . 4 4 . 4 66 4 . 4 4 4 -9 0 8 p s t a c o 5 2 + = 2 1 3 . 4 88 4 . 4 t a c o 5 8 + o t c o 0 4 -= 1 3 5 . 4 6 . 4 96 6 . 4 6 4 -9 0 8 p s t a c o 5 2 + = 8 0 5 . 4 29 6 . 4 t a c o 5 8 + o t c o 0 4 -= v c c y a l ed t e s e r v p i r t 0 2 s v c c v= h t v( o t h t v, )v 1 . 0- h t v 1 . 3 = t u o e m i t e v i t c a t e s e r d o i r e p t p r 0 4 1 0 3 2 0 6 5 s m v c c v = ) x a m ( h t t a c o 5 2 + = 0 0 1 03 0 1 t a c o 5 8 + o t c o 0 4 -= e g a t l o v t u p t u o t e s e r v h o v 8 . 0 c c v v c c v= h t i, v 1 . 0- e c r u o s a m 2 . 1 = v l o 3 . 0 v c c v= h t i, v 1 . 0 + k n i s a m 2 . 1 = _ _ _ _ _ _ e g a t l o v t u p t u o t e s e r v h o v 8 . 0 c c v v c c v= h t i, v 1 . 0 + e c r u o s a m 2 . 1 = v l o 3 . 0 v c c v= h t i, v 1 . 0- k n i s a m 2 . 1 =
3 date: 5/02/06 rev b sp809/810, 3 pin microprocessor supervisor circuit ? copyright 2006 sipex corporation block diagrams test circuit reset generator gnd bandgap v cc nmos reset r1 r2 reset generator gnd bandgap v cc reset r1 r2 (reset) sp809 reset v cc gnd n-ch open-drain type push-pull type electrical characteristics note 1. specifications are production tested at t a = 25 c. specifications over the -40 c to 85 c operating temperature range are assured by design, characterization and correlation with statistical quality controls note 2. reset output is for sp809; reset output is for sp810.
4 date: 5/02/06 rev b sp809/810, 3 pin microprocessor supervisor circuit ? copyright 2006 sipex corporation typical performance characteristics 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 -40 -20 0 20 40 60 80 100 temperature (oc) s u p p l y c u r r e n t ( a ) v t h = 3.1v v t h = 4.6v v t h = 2.3v 0 20 40 60 80 100 120 140 160 180 200 220 240 -60 -40 -20 0 20 40 60 80 100 temperature (c) p o w e r - d o w n r e s e t d e l a y ( s ) v t h = 3.1v v o d = v t h - v c c v o d = 200mv v o d = 100mv v o d = 50mv 0 100 200 300 400 -60 -40 -20 0 20 40 60 80 100 temperature (oc) p o w e r - d o w n r e s e t d e l a y ( s ) v o d = 200mv v th = 4.6v v od = v t h - v c c v o d = 100mv v o d = 50mv 0 100 200 300 400 500 600 -60 -40 -20 0 20 40 60 80 100 temperature (c) p o w e r - u p r e s e t t i m e o u t ( m s ) v t h = 2.3v v t h = 3.1v v t h = 4.6v figure 1. supply current vs. temperature figure 2. power-down reset delay vs. temperature figure 3. power-down reset delay vs. temperature figure 4. power-down reset delay vs. temperature figure 5. normalized reset threshold vs. temperature figure 6. power-up reset time-out vs. temperature 0 10 20 30 40 50 60 70 80 90 100 110 120 -60 -40 -20 0 20 40 60 80 100 temperature (c) p o w e r - d o w n r e s e t d e l a y ( s ) v t h = 2.3v v o d = v t h - v c c v o d = 200mv v o d = 100mv v o d = 50mv 0.985 0.990 0.995 1.000 1.005 1.010 1.015 -40 -20 0 20 40 60 80 100 temperature (oc) n o r m a l i z e d r e s e t t h r e s h o l d ( v ) v t h = 3.1v v th = 4.6v v t h = 2.3v
5 date: 5/02/06 rev b sp809/810, 3 pin microprocessor supervisor circuit ? copyright 2006 sipex corporation pin description e m a n n i p n o i t p i r c s e d d n g . d n u o r g ) 9 0 8 p s ( t e s e r t e s e r e h t w o l e b s i c c v e l i h w w o l s n i a m e r t u p t u o t e s e r . n i p t u p t u o w o l e v i t c a . d l o h s e r h t ) 0 1 8 p s ( t e s e r t e s e r e h t w o l e b s i c c v e l i h w h g i h s n i a m e r t u p t u o t e s e r . n i p t u p t u o h g i h e v i t c a . d l o h s e r h t v c c e g a t l o v y l p p u s p will be activated at a valid reset state. these p supervisory circuits assert reset to prevent code execution errors during power- up, power-down, or brownout conditions. reset is guaranteed to be a logic low for v th >v cc >0.9v. once v cc exceeded the reset threshold, an internal timer keeps reset low for the reset timeout period; after this interval, reset goes high. if a brownout condition occurs (v cc drops below the reset threshold), reset goes low. any time v cc goes below the reset threshold, the internal timer resets to zero, and reset goes low. the internal timer is activated after v cc returns above the reset threshold, and reset remains low for the reset timeout period. detailed description benefits of highly accurate reset threshold sp809/810 with specified voltage as 5v 10% or 3v 10% are ideal for systems using a 5v 5% or 3v 5% power supply. the reset is guaranteed to assert after the power supply falls below the minimum specified operating voltage range of the system ics. the pretrimmed thresholds are reducing the range over which an undesirable reset may occur. application information negative-going v cc transients in addition to issuing a reset to the p during power-up, power-down, and brownout condi - tions, sp809 series are relatively resistant to short-duration negative-going v cc transient. ensuring a valid reset output down to vcc= 0 when v cc falls below 0.9v, sp809 reset output no longer sinks current; it becomes an open circuit. in this case, high-imped - ance cmos logic inputs connecting to reset can drift to undetermined voltages. therefore, sp809/810 with cmos is perfect for most applications of v cc down to 0.9v. however in applications where reset must be valid down to 0v, adding a pull- down resistor to reset causes any leakage currents to flow to ground, holding reset low. interfacing to p with bidirectional reset pins the reset output on the sp809n is open drain, this device interfaces easily with ps that have bidirectional reset pins. connect - ing the p supervisor's reset output directly to the microcontroller's reset pin with a single pull-up resistor allows either device to assert reset.
6 date: 5/02/06 rev b sp809/810, 3 pin microprocessor supervisor circuit ? copyright 2006 sipex corporation package: 3 pin sot-23 e e1 e e1 d b 1 2 3 top view (l1) front view l gauge plane l2 c ? seating plane min nom max min nom max b 0.30 - 0.50 0.012 - 0.020 c 0.08 - 0.20 0.003 - 0.008 d 2.80 2.90 3.04 0.110 0.114 0.120 e 2.10 - 2.64 0.083 - 0.104 e1 1.20 1.30 1.40 0.047 0.051 0.055 e e1 l 0.40 0.50 0.60 0.016 0.020 0.024 l1 l2 0? - 8 0 - 8 a 0.89 - 1.12 0.035 - 0.044 a1 0.01 - 0.10 0.000 - 0.004 a2 0.88 0.95 1.02 0.035 0.037 0.040 sipex pkg signoff date/rev: jl oct25-05 / rev a 0.075 bsc 1.90 bsc 0.25 bsc symbol dimensions in millimeters: controlling dimension dimensions in inches conversion factor: 1 inch = 25.40 mm 0.010 bsc 0.038 bsc 0.95 bsc 3 pin sot-23 jedec to-236 variation ab 0.54 ref 0.021 ref side view a a1 a2 seating plane
7 date: 5/02/06 rev b sp809/810, 3 pin microprocessor supervisor circuit ? copyright 2006 sipex corporation ordering information /tr = tape and reel pack quantity is 2,500 for sot-23. available in lead free packaging. to order add "-l" suffix to part number. example: sp809ek-2-3/tr = standard; sp809ek-l-2-3/tr = lead free part number top mark temperature range package type sp809ek-2-3 ......................... n4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-2-3/tr ................... n4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-2-6 ......................... p4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-2-6/tr ................... p4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-2-9 ......................... q4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-2-9/tr ................... q4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-3-1 ......................... r4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-3-1/tr ................... r4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-4-0 ......................... s4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-4-0/tr ................... s4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-4-4 ......................... t4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-4-4/tr ................... t4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-4-6 ......................... u4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809ek-4-6/tr ................... u4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-2-3 ...................... v4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-2-3/tr ................ v4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-2-6 ..................... w4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-2-6/tr ............... w4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-2-9 ...................... x4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-2-9/tr ................ x4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-3-1 ...................... y4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-3-1/tr ................ y4ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-4-0 ...................... a5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-4-0/tr ................ a5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-4-4 ...................... b5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-4-4/tr ................ b5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-4-6 ...................... c5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp809nek-4-6/tr ................ c5ww..................-40 c to 85 c .......................... 3 pin sot-23 sipex corporation headquarters and sales office 233 south hillview drive milpitas, ca 95035 tel: (408) 934-7500 fax: (408) 935-7600 solved by sipex tm sipex corporation reserves the right to make changes to any products described herein. sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
8 date: 5/02/06 rev b sp809/810, 3 pin microprocessor supervisor circuit ? copyright 2006 sipex corporation ordering information /tr = tape and reel pack quantity is 2,500 for sot-23. available in lead free packaging. to order add "-l" suffix to part number. example: sp810ek-2-3/tr = standard; sp810ek-l-2-3/tr = lead free part number top mark temperature range package type sp810ek-2-3 ......................... d5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-2-3/tr ................... d5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-2-6 ......................... e5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-2-6/tr ................... e5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-2-9 ......................... f5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-2-9/tr ................... f5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-3-1 ......................... g5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-3-1/tr ................... g5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-4-0 ......................... h5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-4-0/tr ................... h5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-4-4 ......................... j5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-4-4/tr ................... j5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-4-6 ......................... k5ww..................-40 c to 85 c .......................... 3 pin sot-23 sp810ek-4-6/tr ................... k5ww..................-40 c to 85 c .......................... 3 pin sot-23 sipex corporation headquarters and sales office 233 south hillview drive milpitas, ca 95035 tel: (408) 934-7500 fax: (408) 935-7600 solved by sipex tm sipex corporation reserves the right to make changes to any products described herein. sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
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